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S8082 Datasheet PDF - Kodenshi

Part Number S8082
Description 1CH Bi-Directional Motor Drive IC
Manufacturers Kodenshi 
Logo Kodenshi Logo 

Preview ( 11 pages )
		
S8082 datasheet, circuit
Semiconductor
http:// www.auk.co.kr
S80821CH Bi-Directional Motor Drive IC
Description
The S8082 is a monolithic integrated circuit designed for driving
bi-directional DC motor with braking mode and speed control
mode, and it is suitable for the loading motor driver of VCR,
CDP, and TOY systems. The speed control can be achieved by
adjusting the external voltage of the speed control pin. It was two
pins of logic inputs for controlling the forward/reverse and
braking.
SOP-8
ORDERING INFORMATION
Product
Name
S8082
Marking
S8082
Package
Name
SOP8
Marking Information
S8082()
AUK YYWW()
Device Code
Year & Week Code
Application
VCR
Low current DC motor such as audio or video equipment.
CD-Player
Compact disk player (CDP) tray or changer
TOY Systems
General DC motor
Features and Benefits
Built-in brake function for stable brake characteristics.
Built-in element to absorb a surge current derived
from changing motor direction and braking motor drive.
Motor speed direction change.
Stable motor direction change.
Interfaces with CMOS devices.
Built-in the thermal shut down circuit (175)
Low standby current (6.5mA)
Wide operating supply voltage range ( 4.3V ~ 13.2V )
SEPT., 2010 REV. 03
KSD-I7F014-003
1
1ch Bi-directional Motor Driver

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1 page
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S8082 equivalent
Application Information
1. Thermal Shut Down Circuit
S8082
I
Q1
V1
R1
V2
R2
Output Stage
[ Vo1, Vo2 ]
Q2 Q3
The built-in thermal shutdown circuit mutes the output current when the chip temperature
reaches 175(typ.). The hysteresis is set to 25(typ.) by IHys,
so the circuit will start up again when the chip temperature falling down to 150(typ.)
When Ta = 25, Q2 & Q3 are turned-off [ Output Stage : Normality Operation ]
V1 = I×(R1+R2)
V2 = R2÷(R1+R2)×V1 = 0.385V
When Ta = 175℃, Q2 & Q3 are turned-on [ Output Stage : Shut Down ]
0.700V – 0.385V = 315mV
[ Vbe level of Q2 & Q3 : 0.700V / Temperature Coefficient of Q2 = Q3 = -1.8mV/]
T.S.D : 315mV÷1.8mV = 175
SEPT., 2010 REV. 03
KSD-I7F014-003
5
1ch Bi-directional Motor Driver

5 Page
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Information Total 11 Pages
Download[ S8082.PDF Datasheet ]

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